Support rib for lighting fixture



FIG. 1 is a front view of the support rib for lighting fixture and the back view is a mirror image thereof;

FIG. 2 is a bottom view of the support rib;

FIG. 3 is a top view of the support rib;

FIG. 4 is a right side view of the support rib; and,

FIG. 5 is a left side view of the support rib.

The stippling is for shading purposes only, and forms no part of the claimed invention. 

The ornamental design for a support rib for lighting fixture, as shown and described. 